Detecting materials properties by vibration technique
Abstract
This project is made to study about detecting materials structure through vibration technique. Apart from that, different test is carried out to define the mechanical properties of
material. Two types of material are used in this project which is Aluminum and Mild Steel and each of materials has two different thicknesses. Thickness for Aluminum is 0.5 and 1.0mm while
Mild Steel is 1.0 and 1.2mm. For this research, it consists of two testing in order to define
material structure and mechanical properties of material. The testing is destructive and nondestructive
test. Destructive test is made to define the mechanical properties of materials such as
ultimate stress (σu), fracture stress (σf) and yield stress (σy). In destructive testing, tests are
carried out to the specimen's failure, in order to understand a specimen's structural performance
or material behavior under different loads. For non-destructive test, it usually provides a more
reliable assessment of the state of the test object. Destruction of the test object usually makes this
type of test more costly to the test object's owner than non-destructive testing. Modal Analysis
has been choosed as non-destructive test in order to study material structure which is natural
frequency (ωn). This project is successful in predicting the materials properties via vibration
technique.